Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to excellence is rooted in a profound passion for mastering the art and intricate science of precision manufacturing. We are committed to delivering superior craftsmanship and innovative solutions that define industry standards. Our unmatched expertise illuminates our path in precision engineering, guiding us through the esteemed realm of top-tier component manufacturing with unparalleled skill and innovation. As pioneers of innovation, we set the standard in crafting and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a diverse array of industries, adeptly meeting varied needs in numerous applications, including:
- Medical and Biotech: Delivering meticulously engineered, ultra-high-precision components along with visionary solutions designed for the revolutionary next generation of medical devices.
- Semiconductors: Elevating chip production and associated equipment with essential components that are both crucial and indispensable to the industry.
- New Energy: Playing a pivotal role in the innovative and sustainable development of cutting-edge energy equipment for the future.
- Automotive: Providing vital components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- Expertly crafted, non-standard custom components serving pivotal industries including medical, automation, semiconductor, and automotive sectors with unmatched excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly showcase an unrivaled fleet, comprising over 300 of the most advanced machinery units in the industry. This vast and varied equipment catalog positions us as leaders at the forefront of technological innovation and adaptability, enabling us to offer cutting-edge solutions that redefine industry standards and explore new horizons in manufacturing. These Top-Tier Branded machinery units constitute the foundational strength of our precision-focused manufacturing prowess. With these elite machines, we adeptly manage complex and challenging machining demands across multiple sectors, achieving unmatched precision and operational efficiency. Our extensive expertise ensures unwavering compliance with stringent quality protocols while providing bespoke customization, meticulously designed to meet the distinct requirements of our discerning clientele.
- Boasting a prestigious 20-year heritage, we draw upon a wealth of manufacturing knowledge seamlessly blended with exceptional technical proficiency and process innovation. This legacy of excellence empowers us to consistently deliver awe-inspiring products that exceed expectations and set new benchmarks of superiority in the industry.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Redefining Industry Standards with Unmatched Precision and Care
Every piece of raw material that enters our secure warehouse undergoes an exhaustive evaluation process, setting an unparalleled platinum standard in quality assurance. This meticulous procedure includes a comprehensive analysis of chemical composition and a thorough examination of physical properties. Our unwavering commitment to excellence mandates that each supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the best materials are integrated into our high-precision medical machining services. Such rigorous authentication safeguards the integrity and purity of materials, consistently upholding the highest standards and ensuring superior quality.
Rigorous In-Process Quality Control: Relentlessly Pursuing Perfection with Unyielding Precision and Vigilance
Throughout the intricate machining process, each component undergoes meticulous scrutiny to guarantee that its dimensions and tolerances precisely match our stringent specifications. This continual inspection protocol is designed to preemptively intercept potential defects, effectively preventing non-conforming parts from advancing further in the process. Through this vigilant and proactive approach, we significantly mitigate the risk of producing substandard goods, ensuring that superior quality is upheld at every stage of production, thereby securing the trust and satisfaction of our valued clientele.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Unparalleled Excellence and Precision
Our First Article Inspection (FAI) serves as the cornerstone of our strategic approach, expertly identifying and resolving potential production challenges from the outset. This proactive method ensures that issues are curtailed before they escalate into mass production. This exhaustive FAI process is essential for minimizing quality risks, ensuring our products consistently meet the pinnacle of standards. It reflects our unwavering commitment to excellence throughout every phase of the production cycle, thereby delivering unmatched reliability and precision.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Defender of Quality and Precision
Before any product leaves our facility, it undergoes a meticulous final inspection process. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This extensive inspection is a testament to our relentless pursuit of quality, ensuring that every part dispatched meets our exacting standards. We deliver only the highest quality products to our esteemed and valued customers, reinforcing their trust and satisfaction in our superior craftsmanship.
Packaging & Shipping
Company Profile
Founded in the illustrious year of 2009, yet with origins that proudly trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a luminary of precision and innovation within the esteemed domain of high-precision component machining. Our distinguished journey, fueled by an insatiable passion and unwavering dedication to engineering excellence, spans over two remarkable decades of achievement. We have passionately carved our niche as visionaries in precision engineering, relentlessly pursuing technical research and setting industry benchmarks of unparalleled excellence. We have amassed an unrivaled depth of technical expertise, distinguishing ourselves as industry leaders with a celebrated reputation for exceptional excellence. Our supreme mastery in precision medical machining services consistently meets the most rigorous tolerances and delivers impeccable surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and reliability continue to earn unwavering trust and admiration from all corners.
With four strategically positioned production bases, thriving in the dynamic and flourishing hubs of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled employees, Donghui has meticulously developed a robust, vertically integrated industry chain. This seamlessly connects research and development, top-tier production, and flawless delivery, ensuring that we consistently meet and exceed the diverse needs of our clients with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious reputation for excellence and groundbreaking innovation.
Workshop Display
Certifications

FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)